72081914 has 8 divisors (see below), whose sum is σ = 108168480. Its totient is φ = 36025756.

The previous prime is 72081869. The next prime is 72081937. The reversal of 72081914 is 41918027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254 + ... + 12009.

It is an arithmetic number, because the mean of its divisors is an integer number (13521060).

Almost surely, 2^72081914 is an apocalyptic number.

72081914 is a deficient number, since it is larger than the sum of its proper divisors (36086566).

72081914 is a wasteful number, since it uses less digits than its factorization.

72081914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 72081914 is about 8490.1068308944. The cubic root of 72081914 is about 416.1744714721.

The spelling of 72081914 in words is "seventy-two million, eighty-one thousand, nine hundred fourteen".